On the mysterious planet D60, the birthplace of the legendary space martial art, Cosmo Beast Style, which harnesses the power of contracted guardians of this planet, the Cosmo Beasts. Under the guidance of the grandmaster, Master Alude, Cosmo Beast Style fighters trained rigorously. One day, a young man named Ultraman Regulos washed up on the shore of D60, having lost all memories except for his name. Recognizing his talent, Master Alude took Regulos under his wing and began to teach him the legendary Cosmo Beast Style, said to be the strongest martial art in the universe… This is the story of his fierce battles.

傳說每當黑淵現世，就會有一場天道大劫毀滅諸天萬界，重啟宇宙。少年林飛因筋脈缺陷無法修行，靠著小聰明在問劍宗混吃等死，直到大劫來臨，恩師與摯友戰死在黑淵才為虛度光陰而追悔莫及。他歷經險阻另闢蹊徑，習得上古煉器法為師門報仇，與魔頭淵皇同歸於盡。豈料因為神秘力量的干涉，他又在重啟的新紀元中重生。為守護從大劫中被神秘人傳承下來的問劍宗，為了相同的慘劇不再上演，林飛決心從一名邊緣弟子做起，修萬劍之道，集群英之力，破天道大劫，續文明火種。